Brainy Birds Know How to Reel in Food With String

Brainy Birds Know How to Reel in Food With String Barbados bullfinches and grackles join a growing list of animals that demonstrate complex problem-solving skills, a new study says. Source: National Geographic Barbados bullfinches and grackles join a growing list of animals that demonstrate complex problem-solving skills, a new study says. Brainy Birds Know How to Reel in Food With String